Method of forming radiators



July 9, 1929, c. T. MORSE METHOD OF FORMING RADIATORS Original Filed Feb. 28, 1927 2 Sheets-Sheet 33% Q & C

1W CLHRK TMoRsE July 9, 1929. c. "r. MORSE METHOD OF FORMING RADIATORS Original Filed Feb. 28, 1927 2 Sheets-Sheet his @MMK lt. MORSE, till DETROIT lldlttlHIGAlll', ASSIGNUE, Eh! 'MEEZNE ASSIGNMEllTS, TU: AMERIUAN BLOWER Qtlfttldtlittilhlttthl, 011? DETROIT, MICHIGAN, ll. UORPORATION tlll IDELAl/VARE.

Uh iitll fthllltl l'tit RdlDllIATtlE$ driginal application filed February en, 1953?, Serial lilo. 171,705. Divided and this August ME, 1956 My invention relates to radiators and in particular to drawn nn-ferrous radiators, and is a division of my application, Serial No. 171,705, filed February 28, 192?.

lit is the object of my invention to provide a method of forming a min-ferrous radiator with high radiating capacity in which there will be main passageways in one direction. for the heating 01 cooling medium and confined air passageways arranged in conjunction with the cooling or heating mediun'i passage ways arranged in a diverse or transverse direction.

It is my object to provide a method of lit forming a close fitting between the two types oi passageways to facilitate the radiation between the parts, the air and the heating or cooling medium being employed.

It is desirable but not essential to have such parts as nearly as possible made of homogeneous material without seams.

Referring to the drawings:

Figure l is a plan view or a radiator embodying these features;

Figure 2 is a plan view of a blank utilized for forming a perforated end member for the radiator;

Figure 3 is a section on the line 33 of Figure 1 showing the arrangement ot the 3G transverse tubular passageways with respect to the heating or cooling-medium pussogeways;

Figure 4 is a section through a tubular member;

Figure 5 is a section through theztubular member formed into an elliptical shape in section; V

llligure 6 is a section through the tubular member as it is termed in its final form;

Figure 7 illustrates in section such tubular air passageway members arranged on a heatin pipe without flanges; a

lFigure 8 is a similar section with flanges;

lFigure 9 is a section showing a two-part construction which when assembled terms both the air passageway and the heating and cooling passageway from the two parts.

Referring to the drawings'in detail, l. rc-

ters to a heating or cooling medium pipe, eny

number of which'may be em loyed. l have shown a pair of such pipes in the radiator tor the purpose of illustration; connected toapplication filed {serial l l'o. 21%,515. Y

gether at one end by the transverse member 2, a header.

Threaded on each of these pipes is a series of parallel, transversely-arranged air conveying pipes oi special configuration.

For the purpose of forming such pipes, l first select an ordinary drawn tubing 23 preterably of non-ferrous material which is formed into an elliptical shaped pipe shown in Figure 5 and is thereafter formed with a pair of intermediately-disposed parallel sides 3 having openings t for receiving the pipe 1 and on either end of these sides 3 expanded portions consisting of an outwardly directed wall 5 and an inwardly directed wall 6 forming a head which is substantially diamond-shaped in section.

When these tubes having the diamond heads and parallel sides are threaded upon the pipes 1 they not only form air passage- Ways above and below the pipes designated l but also their adjoining edges 8 form passageways 9 for the guidance of air over the pipes l. y i

If desired, the openings 4: may have sleeves formed from the side walls 3, said sleeve being designated 10 torming broader bearing and contact surlt'aces on the pipes l for facilitating and improvin the radiation and improving the rigidity o the structure.

In the event it is desired to malre the trans verse heating pipes and the air conveying passageways out of continuous pieces of" stock, I select flat stock and form in such stock centrally thereof tapered thimbles 11 at right angles to the central flat portions 12, such thimbles 11 being-opened at both ends. The fiat portions 12 are bent up as at l3 at an angle to the flat portion 12 and the free ends of the sheet are bent outwardly at on angle to form the member 14 on either side of the sheet.

This member l l overlaps a flange 15 formed on the end of a similar angular sheet margin consisting oil the portions 16 end 17 bent in the reverse direction to the portions 13 and ll. A central portion 18 is provided which has its thimble 19 adapted to receive the thimhle l1 intleriorly thereof a portion ot the thimbles lengt i.

Thus, by forming a series ct successive flat sheets, ll am'enabled to provide it passageway tor the heating or cooling medium through ill the pipe formed by the thimbles 11 and 19 and a transverse air assageway, such. as 20, through the sheets'joined together along the flanges 15 and a third transverse air passageway, designated 21, between the exterior of such sheets and the exterior of the thimble 19. It will be understood that the headers can be made of any desired material either drawn tubings or castings and of any shape desired.

The header 2 is used simply to make a circuit for the steam dripping. The radiator can be placed in any position. The interlocking structure shown provides for great rigidity Withcorrespondinglight Weight.

The secondary tubes with the diamondshaped ends form air chimneys for the induction of the heated air, while at the same time, the'exterior of the radiator provides a maximum of radiation surface both internally and externally and a neat, attractive appearance,

. permitting the radiator to be used in installations which have heretofore been impossible because of the appearance of other types of radiation.

The plate shown in Figure 2 and generally designated22 is so formed as to fit over the ends of the diamond-shaped tubes, if desired, to present a neat appearance.

It will be observed that the sleeves 10 fit closely upon the tubing 1. I find that it is desirable in some instances to form these flanges on the tubing 1 into a close joint by drawing a tool through the tubing 1 and expanding it against the plates 3 so as to form tion shown. if desired.

' the collars 10 sproviding the flange construc- I ueh connections may be brazed "It will be understood that I desire to comprehend within my invention such modifications as may be necessary to adapt it to varyin conditions and uses.

aving thus fully described my invention, what I claim is new and desire to secure by Letters Patent, is:

1. In a process of forming radiator tubes, selecting a tubing circular in section, forming the tubing so that it is elliptical in section with oppositely disposed sharp edges, and then forming the tubing with inwardly disposed spaced parallel sides and heads on either side having angular side corners on either side of the oppositely disposed sharp edges of the tubing, forming heads on either side substantially diamond-shaped in cross section.

2. In a process of forming radiator tubes. selecting a tubing circular in section, forming the tubing so that it is elliptical in section with oppositely disposed sharp edges, and then forming the tubing with inwardly disposed spaced parallel sides and heads on either side having angular side corners on either side of the oppositely disposed sharp edges of the tubing forming heads on either side substantially diamond-shaped in cross section, threading said tubular member on a transverse heat conveying member and expanding said heat conveying member for deforming the portions of the tubular member adjacent thereto to secure a tight joint therebetween.

In testimony whereof, I aliix my signature.

CLARK T. MORSE. 

